Oil pump



Nov. 11 1924. 1,514,973

w. H. KOE HLER ET AL OIL PUMP Filed Oct, 18, 1922 2 Sheets-Sheet 1 fir: 1111 e1 4 Nov. 1-1 1924. 1,514,.9

W. H. KOEHLER ET AL OIL PUMP Filed Oct. 18, 922

1 I Q g Memo zz/awa h? 070Zl0& 4 I/ 2 Sheets-Sheet 2 Patented Nov. 11, 1924.

UNITED STATFS P A T WALTER H. KOEHLER AND JOSEPH B. CROUCH, OF SOMERSET, TEXAS.

OIL PUMP.

Application fi led October 18, 1922. Serial No. 595,298.

To all whom it may concern Be it known that we, WALTER H. KoEI-ILER and Josnrn R. CROUCH, citizens of the United States, residingat Somerset, in the county of Bexar, State'of Texas, have in vented a new and useful Oil Pump, of which the following is a specification.

This invention relates to an oil pump designed primarily for use in connection with the well known Ford automobile whereby a forced feed can be used in lieu of the splash system commonly employed. An objectionable feature of the splash system is the tendency of the pipes and ports becoming clogged by solid substances splashed with the oil. The present invention is designed to overcome this objection by providing a pump which can be applied readily to an engine already in use and will have all of the advantages of a force feed system installed at the time the engine was assembled.

Another object is to provide a pump of this character which is simple, durable and compact and can be applied readily.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that, within the scope of what is claimed, changes in the precise embodiment of the invention shown can be made without departing from the spirit of the invention.

In the accompanying drawings the preferred form of the invention has been shown.

In said drawings Figure 1 is a side elevation, partly in section, showing the present improvements combined with an engine.

Figure 2 is a section on line 22, Figure 1, said section being on an enlarged scale.

Figure 3 is a section on line 33, Figure 2.

Referring to the figures by characters of reference 1, designates a block having a bore- 2 extending thereinto from the back face thereof. In this bore is slidably mounted a piston 3 the inner end of which has a socket 4 in which is seated one end of a coiled spring 5. This spring serves to hold the piston normally projected beyond the back face of the block as shown particularly in Figure 2.

Extending into the block from the margin thereof is a supply port 6 the outer end of which is connterbored as at 7 to receive the" 7 threaded end of a supply pipe 8. This port is extended entirely through the block and that end thereof remote from the counterb'ore 7 is also counterbored, this counterbored portion 9 intersecting the bore 2 and providing at its inner end a seat 10. The outer end of this counterbore 9 is adapted to be closed by a screw plug 11. A ball valve 12 is arranged in the counterbore 9 between the seat 10 and the bore 2 and is held against displacement by a pin 13 extended transversely through the counterbore.

An outlet port it extends from the bore 2 to the margin of the block, the outer end of this port being counterbored as at 15 to provide a seat 16 for a ball valve 17. An outlet pipe 18 is fastened in the counterbore and a coiled spring 19 is interposed .between'this pipe and the ball valve 17 to hold the valve normally to its seat. The block 1 is adapted to be fastened to the side of the engine case 20 by bolts 21 and an opening 22 is formed in the wall of the engine case to receive the outer end of the piston 3. The parts are located where one of the cams C of the valve mechanism of the engine can come against and shift the piston once during each rotation of the cam shaft S.

The supply pipe 8 is extended to an outlet 23 formed in the bottom of the crank case and the outlet pipe 18 is extended to a lubricant receiver 24.

.With a pump such as has been described properly mounted on the engine it will be apparent that each time the shaft S is rotated the piston 3 will be thrust into the bore 2. This will cause the valve 12 to seat and the valve 17 to unseat and any lubricant contained in the bore 2 will be expelled into pipe 18 and thence to the receiver 24. As soon as the cam C has moved out of engagement with the piston 3 the spring 5, which has been placed under compression, will move the piston 3 outwardly, thus setting up a suction which will draw lubricant through pipe 8 to the bore 2. During this action valve 12 will be unseated while valve 17 will be seated.

What is claimed is The combination with a casing having a portion for holding oil, an engine, and a housed shaft operated by the engine and including a cam, of a block secured to the said casing and having a transverse bore extending partly therethrough from the inner side,

a spring pressed plunger slidable Within the bore and having one end projecting normally into the casing and in the path of the cam for actuation by the cam, separate ports radiating from said bore and Within the block, a supply pipe connecting one of the ports with the oil holding portion of the easing, the inner portion of said port being counterbored, the outer portion of the other port being counterbored, an outlet pipe extending from said last named counterbored portion, and valves seated Within the respective counterbores, there being an aperture in the block alining With one of the ports through which the valve in said port is removable, a plug normally closing said aperture, and a retaining member in the counterbore of the supply port for holding the valve against displacement.

In testimony that We claim the foregoing as our own, We have hereto aflixed our signatures in the presence of two witneses.

WALTER H. KOEHLER. JOSEPH a. CROUCH.

Witnesses R. E. EGGLESTON, GARLAND OWENSE. 

